赤道仪或脚架 AZ-EQ6 过滤器 Astrodon 5nm Ha 1.25 附件 DIY Focus controllers 软件 Main Sequence Software Sequence Generator Pro (SGP)·Pixinsight 导星镜或者镜头 Skywatcher Finder guider 9 x 50 导星相机 DIY Cam10 描述 SH2-126 is a nebula with a large angular size but low surface brightness,...